发明人郑宇鹏,唐晓军,何建平. "Method for the Synthesis of Hexamidine Impurity 4" [P]. 中国发明专利, 专利号 CN 108944076 A, 授权公告日 2024-12-23.
Rossi M, Nowak P, Martínez F. "A Process for Preparing High-Purity Hexamidine Impurity 4" [P]. European Patent, EP 3391646 A1, 2023-08-19.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 己脒杂质4 in Pharmaceutical Formulations". Molecules, 2017, 2061, (11), 7873-7877.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 己脒杂质4 as an Impurity". Anal. Chim. Acta, 2022, 154, (2), 4803-4824.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Hexamidine Impurity 4 Using HRMS and NMR". Phytochemistry, 2012, 165, (7), 5223-5228.